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Message-Id: <20190523114736.30268-1-malat@debian.org>
Date: Thu, 23 May 2019 13:47:36 +0200
From: Mathieu Malaterre <malat@...ian.org>
To: Michael Ellerman <mpe@...erman.id.au>
Cc: Mathieu Malaterre <malat@...ian.org>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Paul Mackerras <paulus@...ba.org>,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
linux-pm@...r.kernel.org
Subject: [PATCH] powerpc/power: Expose pfn_is_nosave prototype
The declaration for pfn_is_nosave is only available in
kernel/power/power.h. Since this function can be override in arch,
expose it globally. Having a prototype will make sure to avoid warning
(sometime treated as error with W=1) such as:
arch/powerpc/kernel/suspend.c:18:5: error: no previous prototype for 'pfn_is_nosave' [-Werror=missing-prototypes]
This moves the declaration into a globally visible header file and add
missing include to avoid a warning in powerpc.
Signed-off-by: Mathieu Malaterre <malat@...ian.org>
---
arch/powerpc/kernel/suspend.c | 1 +
include/linux/suspend.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/suspend.c b/arch/powerpc/kernel/suspend.c
index a531154cc0f3..9e1b6b894245 100644
--- a/arch/powerpc/kernel/suspend.c
+++ b/arch/powerpc/kernel/suspend.c
@@ -8,6 +8,7 @@
*/
#include <linux/mm.h>
+#include <linux/suspend.h>
#include <asm/page.h>
#include <asm/sections.h>
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 3f529ad9a9d2..2660bbdf5230 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -395,6 +395,7 @@ extern bool system_entering_hibernation(void);
extern bool hibernation_available(void);
asmlinkage int swsusp_save(void);
extern struct pbe *restore_pblist;
+int pfn_is_nosave(unsigned long pfn);
#else /* CONFIG_HIBERNATION */
static inline void register_nosave_region(unsigned long b, unsigned long e) {}
static inline void register_nosave_region_late(unsigned long b, unsigned long e) {}
--
2.20.1
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